Purolite A170/4675 is a macroporous weakly basic anion resin crosslinked with divinylbenzene that is tailored for sorption of anionic forms of heavy metals from acidic processing solutions. It shows excellent mechanical strength and a resistance to osmotic and thermal shock. The macroporous matrix and ion exchange group functionality imparts an ...

PuroliteS930Plus is a macroporous polystyrene based chelating resin, with iminodiacetic groups designed for the removal of heavy metals from industrial effluents. Purolite S930Plus finds use in processes for extraction and recovery of metals from ores, galvanic plating solutions, pickling baths and effluents. Further uses include the ...

Purolite S950 is a macroporous aminophosphonic acid chelating resin, designed for the removal of cations of toxic metals such as lead, copper and zinc from industrial effluents at low pH. At somewhat higher pH values, calcium, magnesium and barium, as well as the toxic metals cadmium, nickel, and cobalt are strongly complexed and may be separated ...

Purolite S985 is a high capacity, macroporous, weak base anion exchange resin with a polyacrylic matrix supporting functional groups of the polyamine type. The carefully formulated, macroporous acrylic matrix ensures excellent exchange kinetics for the removal of trace heavy metals from waste water streams and the special polyamine functionality ...

The off-gas of metallurgical processes such as copper smelters or zinc roasters are containing a high load of heavy metals, for instance lead (Pb), copper (Cu), chrome (Cr), nickel (Ni), cadmium (Cd), mercury (Hg). Most of these heavy metals are particulates, which are precipitated in the gas cleaning plant, mainly consisting of dry precipitator, ...

The LIGNOR-ARD process is an economically and environmentally sustainable solution for the treatment of Acid Rock Drainage (ARD). LIGNOR-ARD treats ARD to levels within the British Columbia Aquatic Life Standards and generates a biologically stable sludge, which strongly bonds the metals, preventing further leaching into the receiving environment. ...

Metals and particles remain in the condensate after gas cleaning and flue gas condensation. In order to release the condensate into the sea or lakes a water treatment is required, where metals, particulates, and dioxins can be separated. In this cleaning process the water is pumped into the reaction tank and the pH level is adjusted with NaOH ...